I'm doing a bunch of mods tonight which is why I have a few threads going....thanks for your help! I have the carb off and am debating between jets. I'd like to get your advice on the best setup for me. Keep in mind that I'd like to get one "best all around" setup if that's possible even though my riding locations will change quite a bit. I'm ok with giving up a little bit of peak performance but I want to be sure that I don't damage the engine by getting into a too lean situation. I currently live at 5000' with temps ranging from 50-90. I will be moving to Mexico later this year and will be living 8 months on the beach (sea level) in 80-90 degrees with humidity. The other 4 months I will be in Mammoth and Lake Tahoe California at around 5000-8000' and a dry 70-90 degrees. I have the JD red needle at the 5th clip position and it recommends a 168 main up to 6000 and a 165 from 6000-9000. I didn't see anything about the pilot jet. Indy's recommended settings say 165 main and 48 pilot for my Mazatlan 8 month portion of the year and a 165 main and 45 pilot for my elevation portion. I'm confused why JD and Indy recommend different Mains. What are your thoughts? Should I stick with the stock 165/45 setup? 165/48? 168/48? Also, did you guys do anything to the accelerator pump timing adjustment screw of just leave it be? I haven't heard many people mention it but JD recommends it. THanks!